NFC serves as the critical 'last centimeter' connectivity layer in IoT ecosystems—enabling secure, sans contact, and context-aware interactions between physical assets and digital systems. This article explores how NFC and IoT integration powers smarter solutions across Smart Homes and Industry 4.0, with real-world applications leveraging RFIDHY’s certified NFC tags, Lecteurs RFID UHF, and NFC-enabled smart management platforms.